Bunk bed



FIG. 1 is a perspective view of the bunk bed, showing my new design;

FIG. 2 is a front elevational view thereof, drawn to a reduced scale;

FIG. 3 is a rear elevational view thereof; drawn to a reduced scale;

FIG. 4 is a side elevational view thereof, taken from the left of FIG. 1 and drawn to a reduced scale, the right side elevational view being a mirror image of that shown; and,

FIG. 5 is a perspective view thereof, with the ladder exploded from the remainder of the bunk bed. 

The ornamental design for a bunk bed, as shown and described. 